package com.itheima.hashset;

import java.util.HashSet;
import java.util.Objects;

/**
 * @Author 王加鑫
 * @Date 2021/5/16 10:27
 * @Version 1.0
 */
public class HashSetTest01 {
    public static void main(String[] args) {
        HashSet<Student> set = new HashSet<>();

        Student student1 = new Student("张三",23);
        Student student2 = new Student("张三",23);
        set.add(student1);
        set.add(student2);

        //lambda表达式
        set.forEach((s) -> System.out.println(s));
    }
}


class Student{
    private String name;
    private int age;

    public Student() {
    }

    public Student(String name, int age) {
        this.name = name;
        this.age = age;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        Student student = (Student) o;
        return age == student.age &&
                Objects.equals(name, student.name);
    }

    @Override
    public int hashCode() {
        return Objects.hash(name, age);
    }

    @Override
    public String toString() {
        return "Student{" +
                "name='" + name + '\'' +
                ", age=" + age +
                '}';
    }
}
